2359086- "Validation of software packages failed" is encountered on Maintenance Planner during generation of stack xml

Symptom

The error "Validation of software packages failed" is encountered on Maintenance Planner during generation of stack xml on the "Plan" step.

Below are example screenshots of a validation error that you could encounter:

IMPORTANT: Please note that the screenshots included on this article is used as a visual aid and the validation error, add-on and Enhancement Package shown on the screenshots is just an example and can be different depending on the add-on component and Enhancement Package that you will be including/selecting.